The present study addresses problematic anger and irritability in community dwelling persons with traumatic brain injury (TBI). It is designed to test the worth of a novel treatment approach called Anger Self-Management Training (ASMT), compared to a treatment offering supportive therapy focused on personal readjustment and education, the PRE (Personal Readjustment and Education). The project is a 3-center randomized controlled trial employing equivalent therapist time and therapeutic structure in the delivery of treatment options. The overall aim is to evaluate the relative response rate and correlates of treatment response for the ASMT as compared to the PRE.